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Posted by Cpt_CAM on February 4, 2005, 5:35 am
I've been using SolarWinds Performance monitor to watch the traffic on
all ports for 30 days on a given switch. If the traffic is 0 in that
time period I remove the cable from the switchport.
Are there any other methods out there, especially commands on the
switch, that I could use to this? We've got to start recovering some of
our unused ports and we have to know for sure nobody is behind them
before we disconnect them.
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Posted by Walter Roberson on February 4, 2005, 5:54 pm
follows
From: roberson@ibd.nrc-cnrc.gc.ca (Walter Roberson)
Newsgroups: comp.dcom.sys.cisco
Subject: Re: SSL VPN for PIX coming soon?
Date: 4 Feb 2005 17:58:59 GMT
Organization: National Research Council Canada - Conseil national de rechereches
Canada
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Originator: roberson@ibd.nrc-cnrc.gc.ca (Walter Roberson)
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Posted by Cpt_CAM on February 4, 2005, 7:58 pm
Well I think I found what I needed. Under the CATOS the command SH MAC
shows traffic counters for the ports as well as the last time the
counters were cleared. So, if I clear counters on my switches and after
30 days take a note of all ports with xmit and rev octets of 0, I'll
have what I need. Under IOS the command is show port statistics with
the "last cleared" information being under the sh int command.
Do you encounter many situations in which devices are attached to ports
but are completely idle for a month at a time?
Oh yes. We're a large hospital where a lot of install moves adds and
changes take place with no cable deprovisioning going on. So cables
coming from a wall jack behind an oak bookcase are still plugged into
the switch occupying a port, never to be used. Rather than just jam a
new switch in there for all the new patch cables going in, I'm
developing a plan to recover the ports and yank unused cables to make
room.
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Posted by Walter Roberson on February 5, 2005, 4:16 am
:>Do you encounter many situations in which devices are attached to ports
:>but are completely idle for a month at a time?
:Oh yes. We're a large hospital where a lot of install moves adds and
:changes take place with no cable deprovisioning going on. So cables
:coming from a wall jack behind an oak bookcase are still plugged into
:the switch occupying a port, never to be used.
In that situation, the line state would be down; I was asking about
cases in which the line state is up but there is no traffic.
You don't to worry about clearing the counters if you just SNMP
monitor the line states, such as via MRTG.
--
"Infinity is like a stuffed walrus I can hold in the palm of my hand.
Don't do anything with infinity you wouldn't do with a stuffed walrus."
-- Dr. Fletcher, Va. Polytechnic Inst. and St. Univ.
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:>but are completely idle for a month at a time?